*This message was transferred with a trial version of CommuniGate(tm) Pro*
Yes, but note that strtotime has a second parameter, which is "now" if
not indicated.
What strtotime returns is relative to this second parameter.

I would use:

$ahora = time();
$firstTime=strtotime($firstTime, $ahora);
$lastTime=strtotime($lastTime, $ahora);

Pedro.


Danny Shepherd escribió:
> 
> *This message was transferred with a trial version of CommuniGate(tm) Pro*
> Firstly, I assume you mean "Y-m-j H:i:s" for the date format.
> 
> To get the difference between 2 time strings :
> 
> <?php
> 
> // orginal time strings
> $firstTime="2002-04-19 13:49:00";
> $lastTime="2002-04-19 14:00:00";
> 
> // convert to unix timestamps
> $firstTime=strtotime($firstTime);
> $lastTime=strtotime($lastTime);
> 
> // perform subtraction to get the difference (in seconds) between times
> $timeDiff=$lastTime-$firstTime;
> 
> //echo out the difference
> printf ("Difference is %d seconds",$timeDiff);
> 
> ?>
> 
> HTH
> 
> Danny.
> 
> ----- Original Message -----
> From: "Ron Allen" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, April 19, 2002 1:08 PM
> Subject: [PHP] Determine the difference between two dates
> 
> > If I have two variables of time both in the format of "Y-m-j J:i:s"
> > How would I go about and get the difference?
> 
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